<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

		<title>js</title>
	</head>

	<script language="javascript">
		function aa() {
			var r = document.getElementsByName('r')

			for (var i = 0; i < r.length; i++) {
				if (r[i].checked) {
					console.log(r[i].value + ',' + r[i].nextSibling.nodeValue)
				}
			}
		}
	</script>

	<body>
		<form name="form1" method="post" action="">
			<input type="checkbox" name="r" value="1" />a<br />
			<input type="checkbox" name="r" value="2" />b<br />
			<input type="checkbox" name="r" value="3" />c<br />
			<input type="checkbox" name="r" value="4" />d<br />
			<input type="checkbox" name="r" value="5" />e<br />
			<input type="checkbox" name="r" value="6" />f<br />
			<input type="checkbox" name="r" value="7" />g<br />
			<input type="checkbox" name="r" value="8" />h<br />
			<input type="checkbox" name="r" value="9" />i<br />
			<input type="checkbox" name="r" value="10" />j<br />
			<br />
			<input type="button" onclick="aa()" value="button" />
		</form>
	</body>
</html>
